The Bank Approved You for a $600,000 House — Does That Mean You Can Afford It?

Getting approved for a $600,000 house can feel like the bank just handed you permission to start touring bigger kitchens and nicer neighborhoods. But mortgage approval and home affordability are two very different calculations, and confusing them can leave a household financially stretched for years.

Lenders primarily evaluate whether you appear capable of repaying a loan, while your personal budget must account for everything from groceries and childcare to retirement contributions and vacations. That matters even more when mortgage rates are elevated and everyday ownership costs keep climbing. Before shopping at the top of your approval, it pays to calculate what that $600,000 house would actually cost you.

What A $600,000 Home Could Cost Each Month

As of October 1, the average 30-year fixed mortgage rate was 7.28%, according to Freddie Mac, making borrowing considerably more expensive than many buyers experienced earlier this decade. Put 20%, or $120,000, down on a $600,000 house at that rate, and the $480,000 mortgage would carry principal and interest of roughly $3,284 per month.

Property taxes, homeowners insurance and HOA dues could push the actual housing bill hundreds or even thousands of dollars higher, depending on location. Buyers putting down less than 20% may also face private mortgage insurance, adding another potential expense to the home affordability equation. Suddenly, being “approved for $600,000” sounds much different from comfortably paying for a $600,000 home.

Your Lender’s Budget Is Not Your Household Budget

Lenders rely heavily on debt-to-income ratios, but those calculations do not capture every place your paycheck goes. Experian notes that lenders typically prefer a maximum back-end debt-to-income ratio of no more than 36% to 43% for a conventional mortgage. Gross income is what you earn before taxes, health insurance, retirement contributions and other payroll deductions disappear from your paycheck.

A family could therefore satisfy a lender’s underwriting standards while struggling with daycare, medical expenses, college savings or other costs that are not conventional monthly debts. For better home affordability, build your limit from the money that actually reaches your checking account rather than automatically accepting the lender’s maximum.

Today’s Market Makes The Math Even More Important

The timing matters because buyers are navigating expensive financing despite some signs of a cooler housing market. The Mortgage Bankers Association reported that the national median mortgage payment sought by purchase applicants fell to $2,162 in August 2026 from $2,175 in July. Meanwhile, Realtor.com reported a national median listing price of $419,250 in September, putting a $600,000 property roughly $181,000 above that benchmark.

There is some leverage for buyers: 20.8% of listings had price reductions in September, the highest September share since 2018. Instead of treating a large preapproval as a target, buyers can use negotiating opportunities to improve home affordability by paying less.

Do Not Forget The Costs After Closing

The mortgage is only one line in the homeowner’s budget, and some of the most painful bills arrive after the moving truck leaves. Angi’s 2026 State of Home Spending Pulse found that 92% of surveyed homeowners who recently hired a professional completed their project at or above budget, while 43% exceeded their original estimate. Among homeowners who went over budget, slightly more than one-third spent at least 30% more than planned, showing how quickly repair and improvement costs can escalate.

Buyers should also budget for insurance, taxes, utilities, landscaping and maintenance while remembering that taxes and insurance premiums can increase after purchase. Home affordability should therefore include enough monthly breathing room to rebuild savings and handle a four-figure repair without immediately reaching for a credit card.

Run A Financial Stress Test Before Making An Offer

One useful approach is to pretend you already own the house several months before you actually buy it. If your estimated all-in housing cost would be $4,200 but you currently spend $2,800, try transferring the $1,400 difference into savings each month. Continue paying normal expenses, contributing toward retirement and maintaining an emergency fund rather than temporarily cutting everything enjoyable from your life. If that experiment repeatedly forces you to raid savings or carry credit-card balances, your home affordability limit may be lower than the lender’s number.

Also ask how the budget would survive a job loss, $5,000 repair, insurance increase or another major expense during the first year of ownership.

The Best Approval Number May Be The One You Do Not Use

A mortgage preapproval tells you how much a lender may be willing to finance; it does not tell you what lifestyle you can comfortably maintain afterward. Buying below your maximum can preserve money for emergencies, retirement, travel, children and the inevitable surprises that come with owning property. Before offering $600,000, calculate the complete monthly payment, keep cash available after closing and decide what housing cost works with your real priorities. Strong home affordability means being able to enjoy the house without every repair, tax bill or unexpected expense becoming a financial crisis.

If a bank approved you for $600,000, would you spend the full amount or buy a less expensive home for more breathing room? Share your thoughts in the comments.

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Evan Morgan

Evan Morgan has been a full-time freelance writer and editor for 10+ years. When not working, he enjoys catching the latest true crime documentary or getting lost in a good book.